Spatial frequency tuning studies: weighting as a prerequisite for describing psychometric curves by probability summation.


The visibility of sine-wave gratings was determined as a function of their width and modulation depth. The psychometric curves were described by probability summation. resulting in weighting functions which under certain conditions indicate the existence of tuning. i.e. a maximum sensitivity outside the fovea at an eccentricity inversely proportional to the… (More)


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